Questions tagged [food]

Any substance consumed to provide nutritional support for the body.

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4
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2answers
150 views

Can you eat cancer cells without risk?

Afaik GMO products are not a real risk to health of course if they do not contain toxins. But how about cancer cells? Like say rhabdomyosarcoma which is more or less a muscle cancer found also in ...
4
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3answers
255 views

Are chilies technically peppers?

Nando's chain of restaurants (UK) refers to chili peppers as just "chilies". My friend and I had a discussion with regard to whether chilies can be called "peppers" or if they do not belong to the ...
4
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2answers
13k views

How to increase the shelf life of yogurt without refrigeration?

When we make yogurt at home and do not refrigerate it, it will become sour because of conversion of lactose into lactic acid by Lactobacillus bacteria, but this does not happen in case of Nestle's ...
4
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1answer
482 views

What really causes the toxicity of wrongly-thawed meat?

(Note: I've seen multiple related questions over at Cooking.SE, but I'm looking for a scientific explanation, not cooking advice!) I've been researching this for a couple of hours but the more I read,...
4
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1answer
133 views

Blood consumption

Is consumption of blood more "dangerous" compared to meat? There was a news-article about unnatural chemicals found in the blood of mothers. This reminded me about a question I have pondered upon ...
4
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2answers
161 views

Detecting food fraud

There's undoubtedly more than one way to do this, but if a DIY biologist were to attempt to detect food fraud (e.g. as done by students from Stanford University and Trinity School, Manhattan with ...
4
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1answer
626 views

Are turkish hazelnuts edible?

The title of this question is Google suggestion verbatim, when I tried to write it. Yet, I found no answer specifically for Turkish hazelnuts. Turkish hazelnut is a tree and it's fruit looks ...
4
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2answers
159 views

Do birds change their diet before migration?

Migration takes up a lot of energy, so I am wondering if birds (in my case mallards) change their diet / food preferences in the weeks before migrating. Do they select for more energetic foods to fuel ...
4
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1answer
801 views

Does eating bananas help digestion? [closed]

I don't know what I am asking is silly or not, but I have always heard that eating a banana after a meal helps in digestion. Some people says before food while others say after. Is it a fact or some ...
4
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1answer
11k views

Why does the stomach ache if you take a brisk walk after lunch or dinner

After eating your lunch or dinner, if you take a brisk walk, most of the time your stomach aches. Why does that happen? What happens with respect to the body metabolism?
4
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1answer
207 views

Is there any way the food industry can benefit from biofilms?

I realize all of the disadvantages, but I am wondering if the food industry can actually benefit from the formation of biofilms.
4
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1answer
157 views

Would non-human carnivores be able to survive on farmed foods?

Certain creatures that are considered carnivores are non-obligate carnivores and are technically omnivores (such as wolves/dogs). How different is the potential digestive ability of these species ...
4
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1answer
552 views

Does food continue to stay sequential once it is inside my body?

I may be very off on many scientific details here, but I'm always all ears. As far as I understand, any food that is eaten goes to the stomach, gets broken down even further into smaller food ...
4
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1answer
299 views

Proteins in Milk, Oat , Eggs and Soy

I have read that there are proteins in oat which are similar to those in soy, milk and eggs. I know nothing about biochemistry, and I'm struggling to decipher the info i find.. the closest Ive got to ...
4
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1answer
212 views

Is eating cooked food an evolved behavior or rather an intelligent one, passed down via culture?

I was just eating a rather rare steak when I started wondering whether eating foods cooked was something I would instinctively want to do if the practice hadn't been taught to me. So, is cooking food ...
4
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1answer
387 views

Will a garter snake eat unusual prey if made to smell like something normal?

I have noticed that my garter snake only eats after it has smelled it's prey to make sure it is a slug, and it doesn't matter whether it's moving or not. If I were to coat, say, a caterpillar with ...
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2answers
2k views

How mosquitoes get their food and survive?

How do mosquitoes find and get their food? For how much time can they survive without food?
4
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1answer
1k views

Meat and mushroom allergies, why are they so rare?

There are a lot of food allergies, but for some reason not to meat (mammalian meat or poultry) or mushrooms. I've googled a bit, and now I know that one can actually have a meat or mushroom allergy, ...
4
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1answer
57 views

Additive property of taste

It might be a dumb question to ask, but I find it confusing. Is the perception of taste additive? Or to be more precise, can two tasty food items combine to give a more delicious product? For me, ...
4
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1answer
135 views

Does body absorb nutrients less efficiently if we ingest the same amount at the same time, opposed to spreading over a larger period?

I would like to understand if ingesting a certain amount of nutrients will result in different absorption from my body, depending on whether I ingest that amount spread over time or everything at once....
4
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1answer
89 views

Variation of nutrients in food

Recently when buying food, mainly vegetables, I started looking at the nutritional values. Now for some reason the Dutch broccoli has way less protein (~2g/100g) than the German one (~8g/100g). ...
4
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1answer
316 views

Book recommendation on selective breeding?

I am looking for a good book that gives a nice overview of the science and technics of selective breeding. I am particularly interested in the use of population genetics to support decision in this ...
4
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0answers
227 views

Why doesn't pure fat taste better than pure sugar? [closed]

I mean looking from evolutionary perspective sugar tastes sweet and individuals that had this perception ate more sugar and survived and those that didn't perceive sugar as sweet didn't eat it and ...
4
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0answers
110 views

How is nutrient uptake in humans measured? [closed]

There are many claims made about nutrient absorption, eg "Juicing helps you absorb all the nutrients from the vegetables". I'm curious to know how nutrient uptake is measured. Eg is it a pure ...
4
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0answers
230 views

What are the mechanisms that cause bananas to ripen? How is or isn't it related to the banana peel ripening? [closed]

So recently our commercial kitchen got some bunches of bananas with a curious feature. On the inside they were firm and delicious (no jokes, please), on the outside they looked incredibly sickly. ...
3
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1answer
192 views

Why cooked food considered nutritious if proteins decompose at much lower temperatures?

Food is cooked/baked at temperatures that are significantly higher than what's considered normal for proteins/amino acids (40°C). Why is it, then, that such food is still considered nutritious ...
3
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3answers
2k views

What Defines a Food as Edible?

With many foods today containing chemicals, agents and preservatives etc... What biological criteria must a new food and its constituent components satisfy biologically, to be defined as edible? ...
3
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2answers
118 views

Why cooking make foods , e.g rice, vegetable etc, soft?

My initial guess was it is due to absorption of water during cooking (role of heat is probably to accelerate this process). So to verify this I have left uncooked rice in water for two days but so ...
3
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2answers
1k views

Is iodised salt harmful to the lactofermentation process?

I was discussing sauerkraut recipes with someone on IRC a minute ago, and they warned me not to use iodised salt in the process. My first (and so far, the only successful) batch is one I made with ...
3
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1answer
505 views

Why doesn't sugar spoil?

Sugar contains a lot of easily accessible chemical energy. Why seemingly nothing likes to grow on it?
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2answers
368 views

Will genetically modified food affect our health?

It's a popular public sentiment that - GM foods like tomatoes (flavr savr) will affect our health.. Is there any logical scientific explanation behind this?
3
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2answers
1k views

Eating rarely but a lot, or often but little

I wonder if it matters if an average person eats the same amount of food distributed between a few (2-3) meals during the day, or constantly having small snacks. I'm interested in several aspects of ...
3
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2answers
90 views

Why does vacuum sealing of foods prevent spoilage from anaerobic bacteria?

I have noted that many purchased food items in containers only require refrigeration after they have been opened, thus eliminating the vacuum seal. Air contains bacteria and fungus spores that enter ...
3
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2answers
888 views

Can dietary monosodium glutamate intake induce restlestness?

The question is all in the title. More context: I like phở soup. I have noticed that I get restless after eating the phở soup at some restaurants. The effects are similar to the ones resulting from ...
3
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1answer
196 views

The smell from eating asparagus

I am wondering about one thing. I have read different accounts of this (prior to reading it on Wikipedia), so I am wondering. Here are the two versions I have read: asparagus leads in a certain ...
3
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1answer
2k views

Are there any air-plants with parts that are edible for humans?

Are any air plants (Tillansia sp.) safe for humans to eat? I haven't been able to find whether or not there are. Pineapple is in the same family (Bromeliaceae), but isn't an air plant.
3
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1answer
151 views

Can drinking caffeine, alcohol and other diuretics be part of a good drinking regime?

Tea, Coffee, Beer, Coke etc… I wonder if the benefit from amount of fluid we get from them is bigger or smaller then the handicap of dehydration. In other words it is worth to drink them if we want ...
3
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2answers
29k views

Why aren't we allowed to refreeze previously thawed breastmilk in refrigerator?

https://www.breastfeeding.asn.au/bf-info/breastfeeding-and-work/expressing-and-storing-breastmilk Previously frozen— thawed in refrigerator but not warmed 4 hours or less (ie the next feeding) ...
3
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1answer
112 views

Are these spinach leaves?

I often buy baby spinach from the store, and sometimes, in a few bags of spinach I also find these leaves: They have a different shape than the spinach leaves, they are a lighter green, and they ...
3
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1answer
600 views

Protein content in sprouted beans

I have checked on Wikipedia which says that sprouted mung beans has way less protein than normal one, while on web you will find articles saying sprouted beans are best, which is true, how do I eat ...
3
votes
1answer
91 views

Relationship between food decay and electric current

I am planning to do a little experiment on investigating the relationship between food (organic) decay and the electric current. I am going to place the food (ex.banana) on top of an aluminum foil, ...
3
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1answer
232 views

Can we digest food as well as herbivores [duplicate]

I heard some guy say that we can't digest plant food as well as herbivores. Which seems weird to me seeing as how humans can survive without any nutrient deficiencies besides b12 on only plants but we ...
3
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1answer
78 views

What are the obstacles to “refitting” the human body's metabolism?

As a layman, I understand the problem of rising obesity like this: In the old times, humans could never get enough food, thus they would eat whatever they could get. This "program" is encoded in our ...
3
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1answer
1k views

Living on pure glycogen?

I was recently fascinated when I learned about polysaccharides (I am a biology newbie) and was wondering about some of their properties. After doing some googling I was unable to find any information ...
3
votes
1answer
459 views

Needle-like crystals observed in wild-grape wine under microscope. Potentially harmful?

I recently crushed and strained about thirty pounds of wild grapes to ferment into wine. About a month in, I did a visual inspection of the wine under microscope to try and identify some yeast and ...
3
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1answer
94 views

Glutamine analysis

I use to run a method to analyse all the amino-acids in a food sample. For that I have to hydrololyse the sample and in the last stage of the method I read the amino acids with a ion exchange ...
3
votes
1answer
836 views

Is some of the energy of food lost during digestion?

I know that chemical energy of food is converted to heat energy to be used by the body in many metabolic reactions. Specifically, I know that the breaking down of bonds is what releases energy. Does ...
3
votes
1answer
788 views

Why does our mouth “water”?

Whenever we see something delicious, rapid salivation starts in our mouth. Also, it doesn't happen for all other food, which we eat regularly. So, Is there any particular use of "rapid salivation"? ...
3
votes
2answers
182 views

Food allergen-related skin reactions and intestinal inflammation?

Are there any connections between food allergen-related skin reactions causing intestinal (or more broadly, gastrointestinal) generalized inflammation? If such a link exists, is it related to any of ...
3
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1answer
338 views

What are the physiological effects of wine?

I have read that alcohol in general and wine in particular can have advantageous as well as detrimental effects on human health. Is this true? What are the physiological effects of consuming wine in ...

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